材料filtranti

双层衬里筛选管双层衬里筛选管由API标准的基本管组成，，，，双层高精度楔形线滤管管和衬里的滤清器材料。Acciaio al Carbonio spruzzato Plastica o altri Metitali Richiesti dal客户端：　　1.High-precision screening gap can effectively control sand and act as a protective medium。　　2.The use of double-layer lined screening pipe can reduce diameter of drilling hole，，，，节省钻井时间，，，，并降低钻井成本。　　3。使用双层衬里筛选管可以减少操作员的工作量，，，，并提高钻探的成功率。　　4.Filter material can be [...]